What are you looking for? Let’s dig in quickly
Recommended
- A train is moving at a speed of 132 km/h
- A train 240 meter long passed a pole in 24 seconds
- A jogger running at 9km/h alongside a railway track
- A train 360 meter long is running at a speed of 45 km/h
- A train 280 meter long, running with a speed of 63 km/h
- A train 100 meter long is running at the speed of 30 km/h
- Two trains of equal lengths take 10 seconds and 15 seconds
- How long does a train 110 metres long running at the speed
- In what time will a train 100 meters long cross an electric pole
- How many seconds will a 500 meter long train take to cross a man
Explanation
Two trains 140 and 160 meter long are moving in opposite direction so relative speed will be calculated by adding their speeds.
Time = Distance/Speed
To Find
Time = ?
Solution
Relative speed = 60 km/h + 40 km/h
Relative speed = 100 km/h
Now, to change it into m/sec;
Relative speed = (100 x 1000)/3600
Relative speed = 250/9 m/sec
Total distance = 140 + 160 = 300 m
Now,
Time = Distance/Speed
Time = (300 x 9)/250
Time = 10.8 sec answer
Conclusion
If two trains 140 and 160 meter long runs at a speed of 60km/h and 40km/h respectively in opposite directions on parallel tracks. They can cross each other in 10.8 seconds.